We first heard Preston's voice in the Orientation notebook trailer and he was discussing about what was happening in the factory and was adding a few notes of his own. He said that he received the book in 1993 months ago, but he said that he was a biologist and still doesn't know why they hired him in the first place. He said that he read it cover to cover and also said that employees see things they shouldn't, there are accidents... a nursery with orphans and nobody would know what would happen with them. We would hear his voice again in the Catnap restriction tape as well and he is concerned about the experiments as well. It makes sense for him to be the main protagonist but is he Bruno White's son or brother? Who knows? We will have to wait and see in the chapter... See you guys in the flipside!